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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Emballe Médias : Mettre en ligne simplement des documents
29 octobre 2010, parLe plugin emballe médias a été développé principalement pour la distribution mediaSPIP mais est également utilisé dans d’autres projets proches comme géodiversité par exemple. Plugins nécessaires et compatibles
Pour fonctionner ce plugin nécessite que d’autres plugins soient installés : CFG Saisies SPIP Bonux Diogène swfupload jqueryui
D’autres plugins peuvent être utilisés en complément afin d’améliorer ses capacités : Ancres douces Légendes photo_infos spipmotion (...)
Sur d’autres sites (7922)
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FFmpeg libx264 Llicense
2 juillet 2014, par user416472We have Java Spring application. The application interacts with FFmpeg through Java Runtime.exec() call in order to encode video into mp4 format. Are we ok with the commercial aspect of our application, having in mind that libx264 is released under GPL license, ffmpeg under LGPL license and we are using ffmpeg as external command line utility already installed and hosted on the client’s computer ?
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Alfresco Content transformation from .avi to *.flv using ffmpeg
25 octobre 2011, par MasanchezI'm trying to transform diferents video formats into .flv in Alfresco
I'm using 'ffmpeg' tool to transform content.
My code :
avi2flv-transform-context.xml<?xml version='1.0' encoding='UTF-8'?>
<beans>
<bean class="org.alfresco.repo.content.transform.RuntimeExecutableContentTransformerWorker">
<property>
<ref bean="mimetypeService"></ref>
</property>
<property>
<bean class="org.alfresco.util.exec.RuntimeExec">
<property>
<map>
<entry key=".*">
<list>
<value>ffmpeg</value>
<value>-version</value>
</list>
</entry>
</map>
</property>
<property>
<value>1</value>
</property>
</bean>
</property>
<property>
<bean class="org.alfresco.util.exec.RuntimeExec">
<property>
<map>
<entry key="Linux">
<value>ffmpeg -i '${target}' ${flv.encoder.params} '${source}'</value>
</entry>
</map>
</property>
<property>
<value>1,2</value>
</property>
<property>
<value>true</value>
</property>
<property>
<props>
<prop key="flv.encoder.params">-vcodec flv</prop>
</props>
</property>
</bean>
</property>
<property>
<list>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/avi</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/x-msvideo</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/mpeg</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/mp4</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/mpeg2</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/x-sgi-movie</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/quicktime</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/x-ms-asf</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/x-ms-wmv</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/x-rad-screenplay</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
<property>
<value>video/ogg</value>
</property>
<property>
<value>video/x-flv</value>
</property>
</bean>
</list>
</property>
</bean>
<bean class="org.alfresco.repo.content.transform.ProxyContentTransformer" parent="baseContentTransformer">
<property>
<ref bean="transformer.ffmpeg.avi.worker"></ref>
</property>
</bean>
</beans>webservice :
if(getFile(folderVIDEO, field.filename) == null)
{
if(file_test_node=folderVIDEO.createFile(nombrefichero+field.filename)){
model.mensajes.push('Se ha creado el fichero '+nombrefichero+field.filename);
}else
model.mensajes.push('Ha ocurrido un error cuando se intentaba crear el fichero '+nombrefichero+field.filename);
file_test_node.properties.content.write(field.content);
folderVIDEO = getFolder(search.findNode("workspace://SpacesStore/"+fondoid),nameFolderVIDEO);
var action = actions.create("transform");
// Store the transformed version in the same folder as the source
action.parameters["destination-folder"] = file_test_node.parent;
action.parameters["assoc-type"] = "{http://www.alfresco.org/model/content/1.0}contains";
action.parameters["assoc-name"] = file_test_node.name + "transformed";
action.parameters["mime-type"] = "video/x-flv";
// Execute
action.execute(file_test_node);
}The error
The Web Script /alfresco/s/gcd/fondo has responded with a status of 500 - Internal Error.
500 Description: An error inside the HTTP server which prevented it from fulfilling the request.
Message: 09180016 Wrapped Exception (with status template): 09180029 Failed to execute script '/com/inventiaplus/gcd/fondo/creado.post.js (in repository store workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions)': 09180028 Content conversion failed: reader: ContentAccessor[ contentUrl=store://2011/10/18/20/56/65b3457f-c37c-4404-b4b7-9abac30f018d.bin, mimetype=video/x-msvideo, size=1614694, encoding=null, locale=es_ES] writer: ContentAccessor[ contentUrl=store://2011/10/18/20/56/e92d00e2-7bd8-4bdd-8d50-b61fe4bac903.bin, mimetype=video/x-flv, size=0, encoding=null, locale=es_ES] options: org.alfresco.service.cmr.repository.TransformationOptions@745ce55
Exception: org.alfresco.service.cmr.repository.ContentIOException - 09180027 Transformation failed - status indicates an error: Execution result: os: Linux command: [ffmpeg, -i, '/home/inventiaplus/alfresco/tomcat/temp/Alfresco/RuntimeExecutableContentTransformerWorker_target_3008293789769608319.flv', -vcodec flv, '/home/inventiaplus/alfresco/tomcat/temp/Alfresco/RuntimeExecutableContentTransformerWorker_source_5021918644492976031.avi'] succeeded: false exit code: 1 out: err: FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1.2, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --extra-version=4:0.5.1-1ubuntu1.2 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --e
org.alfresco.repo.content.transform.RuntimeExecutableContentTransformerWorker.transform(RuntimeExecutableContentTransformerWorker.java:272)
org.alfresco.repo.content.transform.ProxyContentTransformer.transformInternal(ProxyContentTransformer.java:68)
org.alfresco.repo.content.transform.AbstractContentTransformer2.transform(AbstractContentTransformer2.java:161)
org.alfresco.repo.content.ContentServiceImpl.transform(ContentServiceImpl.java:555)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
net.sf.acegisecurity.intercept.method.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:80)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.alfresco.repo.model.ml.MLContentInterceptor.invoke(MLContentInterceptor.java:125)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:44)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.alfresco.repo.audit.AuditMethodInterceptor.proceed(AuditMethodInterceptor.java:160)
org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:137)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
$Proxy42.transform(Unknown Source)
org.alfresco.repo.action.executer.TransformActionExecuter.doTransform(TransformActionExecuter.java:305)
org.alfresco.repo.action.executer.TransformActionExecuter.executeImpl(TransformActionExecuter.java:270)
org.alfresco.repo.action.executer.ActionExecuterAbstractBase.execute(ActionExecuterAbstractBase.java:133)
org.alfresco.repo.action.ActionServiceImpl.directActionExecution(ActionServiceImpl.java:749)
org.alfresco.repo.action.ActionServiceImpl.executeActionImpl(ActionServiceImpl.java:675)
org.alfresco.repo.action.ActionServiceImpl.executeAction(ActionServiceImpl.java:540)
org.alfresco.repo.action.ActionServiceImpl.executeAction(ActionServiceImpl.java:526)
org.alfresco.repo.action.ActionServiceImpl.executeAction(ActionServiceImpl.java:758)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
org.alfresco.repo.security.permissions.impl.AlwaysProceedMethodInterceptor.invoke(AlwaysProceedMethodInterceptor.java:34)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:44)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.alfresco.repo.audit.AuditMethodInterceptor.proceedWithAudit(AuditMethodInterceptor.java:217)
org.alfresco.repo.audit.AuditMethodInterceptor.proceed(AuditMethodInterceptor.java:184)
org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:137)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
$Proxy34.executeAction(Unknown Source)
org.alfresco.repo.jscript.ScriptAction.executeImpl(ScriptAction.java:147)
org.alfresco.repo.jscript.ScriptAction.execute(ScriptAction.java:136)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.mozilla.javascript.MemberBox.invoke(MemberBox.java:155)
org.mozilla.javascript.NativeJavaMethod.call(NativeJavaMethod.java:243)
org.mozilla.javascript.optimizer.OptRuntime.call1(OptRuntime.java:66)
org.mozilla.javascript.gen.c59._c9(workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions/com/inventiaplus/gcd/fondo/creado.post.js:459)
org.mozilla.javascript.gen.c59.call(workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions/com/inventiaplus/gcd/fondo/creado.post.js)
org.mozilla.javascript.optimizer.OptRuntime.callName(OptRuntime.java:97)
org.mozilla.javascript.gen.c59._c0(workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions/com/inventiaplus/gcd/fondo/creado.post.js:271)
org.mozilla.javascript.gen.c59.call(workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions/com/inventiaplus/gcd/fondo/creado.post.js)
org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:393)
org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:2834)
org.mozilla.javascript.gen.c59.call(workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions/com/inventiaplus/gcd/fondo/creado.post.js)
org.mozilla.javascript.gen.c59.exec(workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions/com/inventiaplus/gcd/fondo/creado.post.js)
org.alfresco.repo.jscript.RhinoScriptProcessor.executeScriptImpl(RhinoScriptProcessor.java:472)
org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:190)
org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:282)
org.alfresco.repo.web.scripts.RepositoryScriptProcessor.executeScript(RepositoryScriptProcessor.java:102)
org.springframework.extensions.webscripts.AbstractWebScript.executeScript(AbstractWebScript.java:981)
org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:86)
org.alfresco.repo.web.scripts.RepositoryContainer$2.execute(RepositoryContainer.java:383)
org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:381)
org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:436)
org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:466)
org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:304)
org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:333)
org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:189)
org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:118)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:58)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
java.lang.Thread.run(Thread.java:619)
Exception: org.alfresco.service.cmr.repository.ContentIOException - 09180028 Content conversion failed: reader: ContentAccessor[ contentUrl=store://2011/10/18/20/56/65b3457f-c37c-4404-b4b7-9abac30f018d.bin, mimetype=video/x-msvideo, size=1614694, encoding=null, locale=es_ES] writer: ContentAccessor[ contentUrl=store://2011/10/18/20/56/e92d00e2-7bd8-4bdd-8d50-b61fe4bac903.bin, mimetype=video/x-flv, size=0, encoding=null, locale=es_ES] options: org.alfresco.service.cmr.repository.TransformationOptions@745ce55
org.alfresco.repo.content.transform.AbstractContentTransformer2.transform(AbstractContentTransformer2.java:177)
Exception: org.alfresco.scripts.ScriptException - 09180029 Failed to execute script '/com/inventiaplus/gcd/fondo/creado.post.js (in repository store workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions)': 09180028 Content conversion failed: reader: ContentAccessor[ contentUrl=store://2011/10/18/20/56/65b3457f-c37c-4404-b4b7-9abac30f018d.bin, mimetype=video/x-msvideo, size=1614694, encoding=null, locale=es_ES] writer: ContentAccessor[ contentUrl=store://2011/10/18/20/56/e92d00e2-7bd8-4bdd-8d50-b61fe4bac903.bin, mimetype=video/x-flv, size=0, encoding=null, locale=es_ES] options: org.alfresco.service.cmr.repository.TransformationOptions@745ce55
org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:194)
Exception: org.springframework.extensions.webscripts.WebScriptException - 09180016 Wrapped Exception (with status template): 09180029 Failed to execute script '/com/inventiaplus/gcd/fondo/creado.post.js (in repository store workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions)': 09180028 Content conversion failed: reader: ContentAccessor[ contentUrl=store://2011/10/18/20/56/65b3457f-c37c-4404-b4b7-9abac30f018d.bin, mimetype=video/x-msvideo, size=1614694, encoding=null, locale=es_ES] writer: ContentAccessor[ contentUrl=store://2011/10/18/20/56/e92d00e2-7bd8-4bdd-8d50-b61fe4bac903.bin, mimetype=video/x-flv, size=0, encoding=null, locale=es_ES] options: org.alfresco.service.cmr.repository.TransformationOptions@745ce55
org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:758)
Server: Community v3.4.0 (c 3335) schema 4,113
Time: Oct 18, 2011 8:56:51 PM
Diagnostics: Inspect Web Script (com/inventiaplus/gcd/fondo/creado.post)I don't know where is the problem
Somebody can help me ?I did some changes...
avi2flv-transform-context.xml :
<entry key="Linux">
<value>ffmpeg -y -i '${target}' ${flv.encoder.params} '${source}'</value>
</entry>Source <-> Target
<props>
<prop key="flv.encoder.params">-threads 2 -s 320x240 -r 29.97 -threads 1 -pix_fmt yuv420p -g 300 -qmin 3 -b 512k -async 50 -ar 44100 -ac 2 -ab 128k</prop>
</props>change parameters
error :
The Web Script /alfresco/s/gcd/fondo/9fe0bf90-1875-4f51-9f75-7c35f6d0802c has responded with a status of 500 - Internal Error.
500 Description: An error inside the HTTP server which prevented it from fulfilling the request.
Message: 09250001 Wrapped Exception (with status template): 09250004 Failed to execute script '/com/inventiaplus/gcd/fondo/guardar.post.js (in repository store workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions)': 09250003 Content conversion failed: reader: ContentAccessor[ contentUrl=store://2011/10/25/8/27/efff7050-3a67-492d-9e5b-507c03bd0a80.bin, mimetype=video/x-msvideo, size=256362496, encoding=null, locale=es_ES] writer: ContentAccessor[ contentUrl=store://2011/10/25/8/28/cb81b7f2-3c72-4266-afd7-0d1a3fb9f420.bin, mimetype=video/x-flv, size=0, encoding=null, locale=es_ES] options: org.alfresco.service.cmr.repository.TransformationOptions@18c4074f
Exception: org.alfresco.service.cmr.repository.ContentIOException - 09250002 Transformation failed - status indicates an error: Execution result: os: Linux command: [ffmpeg, -y, -i, '/home/inventiaplus/alfresco/tomcat/temp/Alfresco/RuntimeExecutableContentTransformerWorker_target_4598080275234396407.flv', -threads 2 -s 320x240 -r 29.97 -threads 1 -pix_fmt yuv420p -g 300 -qmin 3 -b 512k -async 50 -ar 44100 -ac 2 -ab 128k, '/home/inventiaplus/alfresco/tomcat/temp/Alfresco/RuntimeExecutableContentTransformerWorker_source_6538382831295915428.avi'] succeeded: false exit code: 1 out: err: FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1.2, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --extra-version=4:0.5.1-1ubuntu1.2 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --e
...
Exception: org.alfresco.service.cmr.repository.ContentIOException - 09250003 Content conversion failed: reader: ContentAccessor[ contentUrl=store://2011/10/25/8/27/efff7050-3a67-492d-9e5b-507c03bd0a80.bin, mimetype=video/x-msvideo, size=256362496, encoding=null, locale=es_ES] writer: ContentAccessor[ contentUrl=store://2011/10/25/8/28/cb81b7f2-3c72-4266-afd7-0d1a3fb9f420.bin, mimetype=video/x-flv, size=0, encoding=null, locale=es_ES] options: org.alfresco.service.cmr.repository.TransformationOptions@18c4074f
org.alfresco.repo.content.transform.AbstractContentTransformer2.transform(AbstractContentTransformer2.java:177)
Exception: org.alfresco.scripts.ScriptException - 09250004 Failed to execute script '/com/inventiaplus/gcd/fondo/guardar.post.js (in repository store workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions)': 09250003 Content conversion failed: reader: ContentAccessor[ contentUrl=store://2011/10/25/8/27/efff7050-3a67-492d-9e5b-507c03bd0a80.bin, mimetype=video/x-msvideo, size=256362496, encoding=null, locale=es_ES] writer: ContentAccessor[ contentUrl=store://2011/10/25/8/28/cb81b7f2-3c72-4266-afd7-0d1a3fb9f420.bin, mimetype=video/x-flv, size=0, encoding=null, locale=es_ES] options: org.alfresco.service.cmr.repository.TransformationOptions@18c4074f
org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:194)
Exception: org.springframework.extensions.webscripts.WebScriptException - 09250001 Wrapped Exception (with status template): 09250004 Failed to execute script '/com/inventiaplus/gcd/fondo/guardar.post.js (in repository store workspace://SpacesStore/Company Home/Data Dictionary/Web Scripts Extensions)': 09250003 Content conversion failed: reader: ContentAccessor[ contentUrl=store://2011/10/25/8/27/efff7050-3a67-492d-9e5b-507c03bd0a80.bin, mimetype=video/x-msvideo, size=256362496, encoding=null, locale=es_ES] writer: ContentAccessor[ contentUrl=store://2011/10/25/8/28/cb81b7f2-3c72-4266-afd7-0d1a3fb9f420.bin, mimetype=video/x-flv, size=0, encoding=null, locale=es_ES] options: org.alfresco.service.cmr.repository.TransformationOptions@18c4074f
org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:758)
Server: Community v3.4.0 (c 3335) schema 4,113
Time: Oct 25, 2011 8:28:29 AMI use command line
ffmpeg -y -i /home/inventiaplus/alfresco/tomcat/temp/Alfresco/RuntimeExecutableContentTransformerWorker_source_6538382831295915428.avi -threads 2 -s 320x240 -r 29.97 -threads 1 -pix_fmt yuv420p -g 300 -qmin 3 -b 512k -async 50 -ar 44100 -ac 2 -ab 128k /home/inventiaplus/alfresco/tomcat/temp/Alfresco/RuntimeExecutableContentTransformerWorker_target_4598080275234396407.flv
and It works
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Salty Game Music
31 mai 2011, par Multimedia Mike — GeneralHave you heard of Google’s Native Client (NaCl) project ? Probably not. Basically, it allows native code modules to run inside a browser (where ‘browser’ is defined pretty narrowly as ‘Google Chrome’ in this case). Programs are sandboxed so they aren’t a security menace (or so the whitepapers claim) but are allowed to access a variety of APIs including video and audio. The latter API is significant because sound tends to be forgotten in all the hullabaloo surrounding non-Flash web technologies. At any rate, enjoy NaCl while you can because I suspect it won’t be around much longer.
After my recent work upgrading some old music synthesis programs to user more modern audio APIs, I got the idea to try porting the same code to run under NaCl in Chrome (first Nosefart, then Game Music Emu/GME). In this exercise, I met with very limited success. This blog post documents some of the pitfalls in my excursion.
Infrastructure
People who know me know that I’m rather partial — to put it gently — to straight-up C vs. C++. The NaCl SDK is heavily skewed towards C++. However, it does provide a Python tool called init_project.py which can create the skeleton of a project and can do so in C with the'-c'
option :./init_project.py -c -n saltynosefart
This generates something that can be built using a simple ‘make’. When I added Nosefart’s C files, I learned that the project Makefile has places for project-necessary CFLAGS but does not honor them. The problem is that the generated Makefile includes a broader system Makefile that overrides the CFLAGS in the project Makefile. Going into the system Makefile and changing
"CFLAGS ="
->"CFLAGS +="
solves this problem.Still, maybe I’m the first person to attempt building something in Native Client so I’m the first person to notice this ?
Basic Playback
At least the process to create an audio-enabled NaCl app is well-documented. Too bad it doesn’t seem to compile as advertised. According to my notes on the matter, I filled inPPP_InitializeModule()
with the appropriate boilerplate as outlined in the docs but got a linker error concerning get_browser_interface().Plan B : C++
Obviously, the straight C stuff is very much a second-class citizen in this NaCl setup. Fortunately, there is already that fully functional tone generator example program in the limited samples suite. Plan B is to copy that project and edit it until it accepts Nosefart/GME audio instead of a sine wave.The build system assumes all C++ files should have .cc extensions. I have to make some fixes so that it will accept .cpp files (either that, or rename all .cpp to .cc, but that’s not very clean).
Making Noise
You’ll be happy to know that I did successfully swap out the tone generator for either Nosefart or GME. Nosefart has a slightly fickle API that requires revving the emulator frame by frame and generating a certain number of audio samples. GME’s API is much easier to work with in this situation — just tell it how many samples it needs to generate and give it a pointer to a buffer. I played NES and SNES music play through this ad-hoc browser plugin, and I’m confident all the other supported formats would have worked if I went through the bother of converting the music data files into C headers to be included in the NaCl executable binaries (dynamically loading data via the network promised to be a far more challenging prospect reserved for phase 3 of the project).Portable ?
I wouldn’t say so. I developed it on Linux and things ran fine there. I tried to run the same binaries on the Windows version of Chrome to no avail. It looks like it wasn’t even loading the .nexe files (NaCl executables).Thinking About The (Lack Of A) Future
As I was working on this project, I noticed that the online NaCl documentation materialized explicit banners warning that my NaCl binaries compiled for Chrome 11 won’t work for Chrome 12 and that I need to code to the newly-released 0.3 SDK version. Not a fuzzy feeling. I also don’t feel good that I’m working from examples using bleeding edge APIs that feature deprecation as part of their naming convention, e.g., pp::deprecated::ScriptableObject().Ever-changing API + minimal API documentation + API that only works in one browser brand + requiring end user to explicitly enable feature = … well, that’s why I didn’t bother to release any showcase pertaining to this little experiment. Would have been neat, but I strongly suspect that this is yet another one of those APIs that Google decides to deprecate soon.
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